Shock-absorber for vehicles.



` A. DECKER. SHOCK 'ABSORBER POB. VEHICLES.

APPLICATION FILED 061217, 1912.

` Montgoineiy',`

rand 'ttate of"Pennsylvania-l have invented y`i-iLExANDEE DECKER, or MONTGOMERY, PENNSYLVANIA.

l `SEIOCLi-AlBSORBER FOR VEHICLES.

nosesog, i

Specification of Letters Patent.

Patented Mar. 18, i 913.

Application filed October 17, 1912. Serial No. 726,347.

To aN whom it may concern:

lie it ,known that l, i'lrlnxaxmsn DECKER, a citizenpt the `United States, residing` at inthe county of Lycoming` certain new and uset'ul Improvements in Shoek-ibsorbers for Vehicles; and l do hereby declare the following to be a full, clear, and exact deseriptionotl the invention, such asivill enable others skilled in the art to which it appertains to make and use the same My invention relates' to carriages, wagons, automobiles and road vehicles in general, but? more particularly to spring equipment ot novel construction for use in connection with such vehicles.

Ithas tor object the product-ion of means for absorbing the shock to which vehicles are continually subjected by inequalities ofthe road; also of anti-jolting means for cushioning' the seat of the vehicle thereby adding materially to the comfort of its occupants; and also of relieving to a marl-:ed degree the undue and. severe strains to which vehicles, and particularly heavy motor ears, are constantly subjected While in service.

lVith these and other objects and advantages in view, the invention vvill. be hereinafter particularly described and pointed out in the appended claims.

In the accompanying drawings which form part ot' this application for Letters- Patent, and Whereon corresponding numorals indicate like parts in both vieivs: Figure l is a sideelevat-ion of the spring` equipment for one Wheel of a vehicle, the Wheel being indicatedin dotted lines, and so much of the vehicle-frame and seat being shown as required to illustrate the relation of said parts, and Fig. 2 is a rear elevation of parts shown by Fig. l.

Reference being had to the drawings and numerals thereon, l indicates thel axle of a vehicle to Which are clipped body springs 2 ot any ivell known form of construction.

Y Secured to s rines 2 in an a roved manner as shown, is a portion of the rigid vehicle trame 3, and clipped or otherwise at` -tached to the latter are superimposed seat springs et, in the present illustrations elliptical springs being shown, for example. Immediately over the last. mentioned springs et is a. vehicle seat 5 which in turn s fastened to these springs in the ordinary tay, While depending trom the under Side of said seat is a pair ot straps ory other flexible connections 6, as shovvn by Figs. l and Q ot' the drawings, and for purposes vvhichwill hereinafter appear.

Upon axle l just inside et' and preferably between the body sprinojs 2 are pivotally supported yolies 7 each bearing` a flanged sheave pulley, or anti-friction guides, 8 over which straps (i pass, to change their direction, and these straps are finally attached at their opposite ends to the vehicle frame 3 asl at E), thus operatively connecting the vehicleseat, axle and trame.

The foregoing` being a description of one embodiment of my present invention, its operation as an anti-jolt and shock absorbing device may be brietlyvset forth as follows: The length of straps G and their points of attachment are soproportioned and arranged that seabsprings 4 are normally under au initial tension in excess et that required to support seat 5 and its occupant. It nonv inequalities'in a roadbed are encountered a relative movement. ofl

axle 1 and the vehicle frame 3 vvill occur, if this movement be an approaching movement of said axle and frame it is quite obvious that. the tension on straps G will be proportionately relieved, thereby permitting the seat springs et to expand more or less, and, as a consequence, to lift seat 5 vvith its occupants correspondingly thus counter-acting all jolting or bumping tendencies. And, it Will be further noted that the reverse action is equally true, if the relative movement, before referred to, between'axle l vand trame 3 be in opposite direct-ions the straps 6 are vautomatically placed under increased tension which results in further compression of the ,seat springs t and a lowering more or less of -seat 5- withits loccupants to counteracty a rise of frame 3 and the vehicle body.

The foregoing being a description of my invention in one form of embodiment, it

should be understood that various Ystructural changes and modified arrangements may be made 'andsubstituted for the parts herein shown and described, without in the least departing from the spirit of this in-A vention, and to all such I lay claim, in so far as they involve means for imparting to seat springs and seats of vehicles a movement the reverse of that-sustained by the trame antibody of the vehicle in passing over inequalities in a road-bed. Forexl its occupants,

ample. the form, size, number and position ot springs both body and seat springs is wholly immaterial, provided, only, that the seat springs are normally under an initial tension slightly in excess of, or in addition to, that applied through weight of the seat and its occupants. 4And in like manner the means ot yieldingly connect-ing the tension strap 6 to thev axle l may be changed to meet requirements of a large variety of vehicles. lvtoreover, the strap 6, or its equivalent, may be permanently attached at lone end to axle 1 passing thence over a -sheave or yielding connection beneath seat.

5, and be nally secured at its opposite end y directly to the vehicle frame 3 Without ment as hereinbefore set forth.

allering the act-ion 'of the spring equip- Havi'ng thus *described my invention, What I now claim and desire to secure by Letters Patent is: y i

1. A Y seat for vehicles mounted upon springs-normally under: tension in excess of that required to support'said seat and its occupants, in combination ,with means for automatically permitting `a vertical movement of said seat in a direction the reverse of that imparted tothe vehicle frame by inequalities in the road bed.

2. A seat for vehicles mounted upon springs normally 'under tension in excess of that required to support said seatand in combination with means for operatively connecting the vehicle-seat axle and frame for automatically permitting a vertical` movement of said seat in a direction the reverse of that imparted to the vehicle frame by inequalities in the road bed.

3. A seat for vehicles mounted upon springs normally under tension in excess of that required to support said seat and its occupants, in combination with a flexible connection between the vehicleseat axle and frame for automatically permitting a vertical movement of said seat in a direction the reverse of that imparted to the vehicle frame by inequalities in the road bed.

4. In a vehicle the combination with its running-gear, of a v seat mounted upon springs normally under tension in excess of that required to support said seat and its occupants, a flexible connection between said seat and the vehicle-frame, and an anti friction guide carried by the vehicle axle over Whlch the' said flexible connection passes.

In testimony whereof I aix my signa- ALEXANDER DECKER.

Witnesses:

WrLBER T. WELsHANs, MARY HALES. 

